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Why we call it "inspection"...

Discussion in 'Norton Commando Motorcycles (Classic)' started by concours, Jan 8, 2018.

  1. concours

    concours VIP MEMBER

    Joined:
    Dec 29, 2011
    Good reason enough to toss the old Boyah. The Pazon Altair curve shows full advance by 3,000, that sounds better, yes?
     
    Last edited: Jan 11, 2018
  2. oldmikew

    oldmikew

    Joined:
    Jul 25, 2015
    I fitted one of the very first Boyer ign systems .. it had a brown not black box..and yes analogue and yes it just kept on advancing in a lazy way.. so you never really knew what the timing was unless you had one of those super duper strobes that would give a stable image at say 6000 rpm and a willing helper anxious to damage his or her ears.. Mine suddenly and inexplicably kicked back on ks. very other kick so to speak.. found that ign was indeed 36degrees at around 5000 rpm. As you say way too much
     
  3. oldmikew

    oldmikew

    Joined:
    Jul 25, 2015
    Not necessarily, I used to set mine up by advancing the stator plate until it occaisonally kicked back and then marked the plate and the case with a pencil line and pulled it back until the twommarks were out of alignment -figure that to be about half a degree.
     
  4. concours

    concours VIP MEMBER

    Joined:
    Dec 29, 2011
    You mean Boyer? Pazon? I use sharpie witness marks too.
     
  5. oldmikew

    oldmikew

    Joined:
    Jul 25, 2015
    Boyer ... purchased in 72. Just a thought but wonder if your carb settings are a tad on the weakside ? would require more advance so one fault conceals another. Oddly mine worked the opposite direction , ie if pulled back a couple of degree then it runs really smoothly and easily midrange.. Nor does it sound retarded.. Boyers do require think its 3 or more ohms resistance in the primary windings .
    I say worked because the original kit which performed very well for over 20 years was replaced by a Boyer digital mk 3 or 4. Nightmare. Went over to Pazon smartfire -overkill for road use but very good.. The quality of connectors etc is superb.
     
    Last edited: Jan 12, 2018
  6. Bernhard

    Bernhard

    Joined:
    Apr 20, 2011
    Damage looks consistent with not being used and condensation formed on the bearing, but I would expect it to occur on the bottom.
     
  7. concours

    concours VIP MEMBER

    Joined:
    Dec 29, 2011
    image.jpeg image.jpeg image.jpeg image.jpeg

    Let's talk about pistons....
     

    Attached Files:

    Last edited: Jan 16, 2018
  8. Dances with Shrapnel

    Dances with Shrapnel VIP MEMBER

    Joined:
    Jul 8, 2011
    Concours, all you need is a little rum and you will be liberating Cuba!
     
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  9. concours

    concours VIP MEMBER

    Joined:
    Dec 29, 2011
    Right!?!?:D

    Whole lotta coke...
     
  10. wrecks

    wrecks

    Joined:
    Jan 31, 2012
    Thank you for supplying the punch line, my mind is working slow tonight.
     
  11. concours

    concours VIP MEMBER

    Joined:
    Dec 29, 2011
    So. I measured things up, firstly, the rings (end gap) were at .012 to .013", right where they began life 31,000 miles ago. Pretty much says there is no excessive ring or bore wear.
     
  12. concours

    concours VIP MEMBER

    Joined:
    Dec 29, 2011
    image.jpeg image.jpeg image.jpeg

    only .0002" difference, throughout the bore.
     
  13. Nater_Potater

    Nater_Potater VIP MEMBER

    Joined:
    Apr 7, 2013
    That's about where mine was after 20,000 miles. I cleaned up the pistons, touched the bores with a spring hone to break the glaze, popped in some new rings, and put another 5,000 miles on with nary a puff or oil loss.

    Nathan
     
  14. MikeG

    MikeG

    Joined:
    May 31, 2012
  15. concours

    concours VIP MEMBER

    Joined:
    Dec 29, 2011
    Only way I can "roll coal"
     
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  16. concours

    concours VIP MEMBER

    Joined:
    Dec 29, 2011
    As to the fit on the crank journal, the damaged (timing) side pulled off rather nicely. The undamaged (PTO) side, was really tight on the journal. Go figure...
    image.jpeg
     
    Last edited: Mar 22, 2018
  17. comnoz

    comnoz VIP MEMBER

    Joined:
    Dec 10, 2008
    That would be normal. The timing side bearing does not need to be as tight since it is retained by the oil pump drive gear. Jim
     
    concours likes this.
  18. concours

    concours VIP MEMBER

    Joined:
    Dec 29, 2011
    Anyone know who makes the Tony Tiger bearing shells? :p
    image.jpeg image.jpeg image.jpeg
     
  19. kommando

    kommando

    Joined:
    May 7, 2005
    They have all the indications of a Glacier bearing but with one caveat.

    They are missing the G inside a square stamp, this was put on all Glacier shells even if the OEM has their logo added, the 2416LC is an old AE catalogue ref which would have been made by Glacier and made from steel with a sintered copper/lead with a lead/tin overlay plating is a trimetal bearing. As the AE bearing numbers were used by lots of other bearing makers however it does not tell you much.

    So these are either fake as Glacier are the sole bearing maker left in the UK, or if genuine they have changed policy and have dropped the G in a square. As the parent company is now German and seems determined to destroy the Glacier name it's likely the G in a square has been dropped and these are genuine Glacier.
     
  20. comnoz

    comnoz VIP MEMBER

    Joined:
    Dec 10, 2008
    Made by King Bearing Co. in NJ.
     
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